* Revert "accelerate dropout (#9902)"

This reverts commit 2e331c65.

* Correct discard

* Fix print op cpplint errors

* Remove commented code

* accelerate dropout

* accelerate dropout

* "fix the dropout test"

* "rerun ci"

* "fix ci"

* "rerun ci"

* "fix ci"

* "fix"

* "stage"

* disable

* script to add semicolon

* fix typo

* Fix CPPLint errors in multiclass_nms, nccl, nce, reduce and save_load_combine

* Fix

Fix a bug in save_inference_model and prune when the program is initailized by load_inference_model (#10011)

* Fix bug in save_inference_model and prune when the program is initialized by load_inference_program.

* Save the transpiled program instead.

* Privatize OpHandleBase

* Clean up a few private members